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Diese Varietat stammt entweder von Nord-Sumatra 

 oder von Malaka. 



Die sehr schmalen, für die Art ausserst charakteris- 

 tischen Pollinien sind bei der Varietat nicht verschieden. 



Thrixspermum inquinatum J. J. S. tl. sp. 



Caulis elongatus, eompressus, c. 30 cm. longus. Folia 

 bifaria, patentia, remota, loriformia, obtusa, breviter bi- 

 lobata, mucronata, basi conduplicata, supra sulcata, car- 

 nosa, nitida, satis dilute viridia, initio pallide viola- 

 ceo-punctata, c. 16 cm. longa, 3.8 — 4.3 cm. lata; va- 

 ginae tubulosae, compressae, dilute virides, internodiis 

 longiores, c. 0.9 cm. latae. Racemi vaginas perforantes, 

 paterites, elongati, mnltiflori. Pedunculus eompressus, en- 

 siformis, nitidus, dilute viridis, c. 10—17 cm. longus, 

 ad apicem dilatatus usque ad 0.55 cm., squamis paucis 

 brevibus tectus. Rachis cum bracteis pectinata, lata, 

 compressa, nitida, dilute viridis, c. 15 cm. longa vel plus. 

 Bracteae bifariae, conduplicatae, 3angulares, valde cari- 

 natae, acutae. Flores intervallis plerumque bini expansie 

 magni, albi, teneri, expansi c. 12 cm. lati, ephemeri. 

 Sepala linearia, elongata, basi paulum dilatata, acuta, 

 cum mucrone tereti, canaliculata, c. 6 cm. longa, 0.5 cm. 

 lata; lateralia paulo longiora, basi falcato-curvata. Petala 

 sepalis similia, reflexa, c. 6.2 cm. longa, 0.45 cm. lata. 

 Labellum basi lata cum pede columnae adnatum, sacca- 

 tum, 31obatum, supernum, totum 1.4 cm. longum, 

 album, medio violaceo-fuscum ; saccus latus, rotundatus, 

 a dorso paulum eompressus, subcostulatus, dorso impresso, 

 fuscus, basi fascia transversa pallide flava, c. 0.5 cm. 

 longus, 0.7 cm. latus, intus luteo-pilosus ; lobi laterales 

 erecti [proprie deorsum versi] subincurvi, breves, late 

 rotundati, albo-marginati ; lobus medius porrectus, rectus, 

 anguste conicus, acutus, carnosus, albus, basi concavus- 



